Motor-starter.



0.8725521 T' Y RATRNTRD DRT-Rigo?,

A. W; MANZ. v MoToR STARTER.

vAPPLIOATION FILED FEB. 26, 1906.

' that with explosive `citizen of the United the following for explosiveengines muren vsraras rarnnr ernten ADOLPl-I W. MANZ, OF CHICAGO,ILLINOIS, ASSIGNOR TO IAUL II. MAINZ, OF CHICAGO,

' ILLINOIS.

MOTOR-STARTER.

T o all whom 'it may concern: i

Be it known that I, .ADOLPH W. MANZ, a

States, residing at Chiof Cook and State of Illicago, in the countynois, have invented certain new anduseful Il Improvements inMotor-Starters,

is a specification, My invention'relates to starting devices U or motorsand especially to that type of motor employed for driving vehicles. p

The chief objects of my invention are tok provide a convenient,efficient and economical device by means of which the operator canquickly and safely start the engine without leaving his seat.

lt is well known that the main shaft-of any explosive engine must begiven asufficient movement to cause at least one explosion before itsaction will become automatic and that this movement must be imparted bysome power outside of the engine itself. As" ordinarily constructed themechanism by which this is accomplished, in order to economize space andfor other; reasons, is'placed beneath the body of the vehicle or in'some` other equally inconvenient location. This makes it necessary forthe operator to alight from the vehicle and it often happens that hemust do 'this in a place where the mud or water makes it verydisagreeable and considerable ,time may be consumed beforethe desiredresult is accomplished. The ordinary starting device consists of adetachable crank which can be temporarily applied to turn the engineshaft. haste has been known to leave the operating crank behind only todiscover his loss when he again needed it to start his motor. It is alsowell known tothose skilled in the art of whichr that the time of-i ltion should bear a certain relation to thiol position of the piston withreference to its dead center, such rela-A tion varying according to thespeedof thev engine. For this reason the settingA of the sparker has .adirect bearinCr upon the nievement of thepiston and its driven crank;for instance, if the time of ignition is set in ad- -vance when thecrank is'approaching dead center and ignition of the charge should takeplace, a reverse movement of the engine willoccur and. as a result theoperator will be in danger of severe injury from the backward jerk ofhis crank by the engagement ofthe Specification of Letters Patent.

The operator in hismotors it is necessary i Patented Dec. 3, 1907.

Application tiled february 26. 1906. Serial N o. 302322.

dog by the ratchet. For this reason provision must be made' to render itimpossible to start the motor when the sparking mechanism is set in thezone of danger.

I accomplish the above objectsin a genl eral way by attaching a' ratchetwheel to the \engine shaft andl operating the same by means of a pawlmounted upon a lever and.

l controlled by a cable passing over suitably arranged pulleys, saidcable being furnished witha handle placed conveniently near to thedrivers seat. i

The means employed by me is adaptable to the great variety of the motorvehicles in common use. sary to construct the starting device to suitHithertoV it has been neces` the exigencies of each type of motor and iwhen it forms a part ofthe mechanism its construction must he carried oninconjunction with that of the vehicle itself. In my improved devicethis is not necessary as the apparatus is constructed with the view ofmaking it possible to apply'itrto vehicles already constructed and ofalmost any dev-` sign whatever. The ordinary method of starting theengine by the application of a crank is so awkward and inconvenientthatit is customary to keep the engine in motion stops ofthe' vehicleare made. of my improved startin device which is easily operated andrapi in its action, the motor will be more frequently stopped and thusthere will be a great saving in fuel, oil, wear etc. In the accompanyingdrawing part of .this specification 2-Figure elevation of my improvedexplosive engine starter attached to the Aframe of an automobile,sufficient onl when short By the use forming a y 0f the vehicle beingvention thereto; Fig. 2 is a fragmentary view showing 'the' method ofremovably attaching the ratchet wheel and its relation to` the journalof the operating lever; Fig. 4 is aA side view of the ratchet wheel andthe fianged journal of the operating lever.

Referring to the drawing, 1 is the framework of an automobile, 2 'theengine shaft and 3 an operating lever, ournaled in a bearing 4concentric with'therotating center of the main shaft. In some types ofautomobilel construction the method of supporting the main shaft is auchas to render it im- 1 is a sideV shown to illustrate the application ofmy inpossible to attach the lever center in line No surround the shaft,each portion having j flanges 6, 7, the wider ofthe two having holes 8for screwsv or bolts by Which the Abear-v ing can besecured to theframework. A collar 9 `also made in two part-s to facilitate assemblingand fastened. together by bolts 10 has an arm 11 perforated for'bolts 12means of which the operating lever 3 can be firmly attached thereto. Aratchet wheel 13 made in halves and fastened together by bolts 14 isfirmly clamped upon the main by j duce a partial revolution-"ofexcursion of the operating lever, and' rasping the handle 27 gives 1t anupwarc and backward movement. As the handle begins to move, since thecable 19 is attached at the opposite end to the pawl 16, the latter willbe extended until it engages the ratchet Awheel 13. A continuance of thehandle movement inthe same direction will then cause the lever 3 to moveupon it-s center carrying the ratchet Wheel with y the engine shaft 2,the'momentum of the fly Wheel 5 continuing thel movement sufficiently tocause a action of the The hanit and thus proshaft and rotates with it,being keyed upon ldlethen being released the action of the said shaft bymeans of feathers 15 which engage splines cut in the surface of theshaft on opposite sides.4 A pawl 16 is pivotally attached to the saidoperating lever by a bolt 17 and is adapted to engage the notches ofsaid ratchet wheel 13, 'and is normally kept out of engagement thereofby means of a spring 1S. A cable 19 is secured at one end to Uhe pawl'land is carried around grooved wheels 20, 21, attached to the operatinglever, thence around pulleys 22, 23, attached to the framework and thenpasses through a hole 24 in a foot plate 25 placed at the base of thedash 26, Where it terminates in a handle 27.- When released the saidhandle rests upon the foot plate 25 and a spring 28 holds the operatinglevergin retracted position against a stop 29, the adjustment being suchthat the spring 18 will then hold the pawl 16 out of engagement with theratchet Wheel 13. Thejnechanisln is so adjusted that when the regulatinglever 30 of the sparking device is within the zone of danger, i. e., soadvanced that the discharge Will be `likely to cause reversal of theengine and consequent injury to the starting mechanism and possibly tothe operator, it will .be in the 4path of movement of the operating.

lever 3 so that when Ythe. handle. 27 is pulled the operating lever willengage withethe said regulating lever 30 and prevent any furthermovement of said lever 3. When this happens the operator will bereminded to set the lever 30 over far enough to clear' the operatinglever and thus the starting mechanism will and the engine can be startedby pulling upon the handle 27 without any danger of a prematureexplosion.

Having thus described the mechanism of my improved starting device forexplosive engines I Will briefly indicate the method of using the same.When the motor isat rest and the operator desires to start the engine hefirst turns the sparking control lever 30 to a' position where it willnot interfere with the be freed. from the obstruction spring 2S willretract the parts to their initial position with the handle 27 upon thefoot plate 25, the operating lever 3 resting against its stop 29 and thepawl 16 free from engagement with the ratchet teeth. Shoul 011e impulseof the handle be insuflicient to give the required momentum to the flyWheel, the movement can be repeated as many times as maybe necessary,but since the arrangement is such that the operating lever will describean arc of about. 90 degrees one pull upon the handle will ordinarily beall that is required.

It is evident that many changes may be made in the precise form ofthe'parts and the construction ofthe mechanism herein shown withoutdeparting from the spirit and scope of my invention, and I therefore donot wishw to be limited to in s et forth, but

Having thus described my invention, what I claim as new' and desire tosecure by Letters Patent, is

A starting device for motors, in combination with the motor main shaft,a lever loosely mounted on said shaft, split 'bearings on said shaftembracing said lever, a split ratchet-wheel secured on said shaftadjacent to said lever, pulleys mounted on said lever near its ends,operative means for making traction upon said lever, said operativemeans consisting of a flexible and a yielding portion, said flexibleportion passing over said pulleys and provided'with a handle, a pawlpivoted to the lever and forming a link between the said portions of theoperative means for the lever, means for retaining the lever ininoperative position, and means for` preventing the untimely operationof said lever.

In testimony whereof I affix ,my signature in presence of two witnesses.

ADOLPH l W. MANZ. I

the exact construction herey Witnesses: l

PAUL H. MANz, C. F. BAssEr'r.

